package com.haili.ins.common.utils.qrcode;


import java.io.IOException;
import java.util.Hashtable;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public class RQCodeUtils {

    public static String Encode_QR_CODE(String contents, String logoPath, int width, int height) throws IOException, WriterException {
        String format = "png";// 二维码的图片格式 gif  

        Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
        // 指定纠错等级,纠错级别（L 7%、M 15%、Q 25%、H 30%）
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        // 内容所使用字符集编码  
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
//      hints.put(EncodeHintType.MAX_SIZE, 350);//设置图片的最大值  
//      hints.put(EncodeHintType.MIN_SIZE, 100);//设置图片的最小值  
        hints.put(EncodeHintType.MARGIN, 1);//设置二维码边的空度，非负数  

        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,//要编码的内容  
                //编码类型，目前zxing支持：Aztec 2D,CODABAR 1D format,Code 39 1D,Code 93 1D ,Code 128 1D,  
                //Data Matrix 2D , EAN-8 1D,EAN-13 1D,ITF (Interleaved Two of Five) 1D,  
                //MaxiCode 2D barcode,PDF417,QR Code 2D,RSS 14,RSS EXPANDED,UPC-A 1D,UPC-E 1D,UPC/EAN extension,UPC_EAN_EXTENSION  
                BarcodeFormat.QR_CODE,
                width, //条形码的宽度  
                height, //条形码的高度  
                hints);//生成条形码时的一些配置,此项可选  

        // 生成二维码  
        String src = MatrixToImageWriter.writeToBase64(bitMatrix, format, logoPath);
        return src;
    }

    public static void main(String[] args) throws Exception {
        try {
            String a = Encode_QR_CODE("C:\\Users\\ysh\\Desktop\\TEST\\logo.png", "C:\\Users\\ysh\\Desktop\\TEST\\logo.png", 400, 400);
            System.out.println(a);
        } catch (Exception e) {
            // TODO: handle exception  
            e.printStackTrace();
        }
    }

}